Polk County (trfnews.i234.me): Former UND Professor Pleads Not Guilty in Prostitution Sting A former University of North Dakota chemistry professor has pleaded not guilty to a felony charge of soliciting someone he believed to be a minor for prostitution in Polk County, Minnesota. According to court records, Qianli “Rick” Chu, age 50, entered a not… Continue reading Former UND Professor Pleads Not Guilty in Prostitution Sting